Sand-blast spark-plug cleaner



Dec. .4, 1923. r 1,475,992 C. HANSON SAND BLAST SPARK PLUG CLEANER File'd April 3, 1922 Patented Dec. 4, l9'23.-

,mls Hanson. /or rom ponen, Iowa SAND-BLAST SPARK-raue umm.

xppnnontmea April s, 1922, serial no. 54ans.

To all 'whom t may concern Be it known that I, Cnms HANsoN; a citizen of the United States, and a'resident of Fort Dodge, in the county of Webster and Statefof Iowa, have y.invented a certain new and useful Sand-Blast Spark-Plu Cleaner,

. of which the following is a speci cation.

v The hopper structure inclines down to av The object of my invention is to rovide a sand blast spark plug cleaner o simple, durable and comparatively inexpensive construction.

More particularly, my invention relates to a sand blast cleaner for spark plugs, wherein the sand may be utilized over and overagain. Y

With these and other objects in view, my invention consists in` the construction, arrangement and combination of the various parts of my device, whereby the' objects contemplatedy are attained, as hereinafter more fully set forth, pointed out in my claim, and illustrated in the accompanying drawings, in which: y

- Figure 1 is atop plan view of my invention.l

.view of the Aair nozzle construction; and

Figure 4 is a detail,.sectional view taken Qn the line 4 4 of \Figure 2.

In the accompanying drawings, I. have used the Ireference numeral 10 to` indicate generally, a Lcasing or hopper fwhich is provided with-.inclined sides and a bottom 11.

common discharge opening 12. The hopper structure 10 isso arranged thatJ it is sub- The T fitting 18 has onej of its endsextended through the hopper structure l10.

stantially rectangular' in outline. t

Thetop side 13 of the hopper structliregis 23 rovided 'with an enlarged opening. 14, hav` mg an annular flange 16 extending upwardly there around.

A cloth bag or the like 16 extends over the.

opening'14 andlis heldin positionby means of a coil spring 117 extendin around the flange' 15, as clearlv shown in igure 2 of the VAThe "purposefo'fA the cloth b ag 16 will; .be hereafter more fully-explained. Connected tothe discharge opening 12 is a T fitting 18.

Connected 'to one end of the 'l'- fitting` 18 'is a 'pipe 19, having one of its endsv ex' tended 'through an opening formed in'the Figure 2 is a central, sectionalfviewtaken materials collecting on spark with an internal rabbet 22 which receives a spark'plug holder or -ring 23.

. The ring 23 may be either formed with screw threads on its inner surface or S'. A.

E., threads or standard threads. The ring 1 23 is designed to have a spark plug 24 received thereon. The ring 23 is held in position b means of a screw 25, extending throng the flange 21. By changing the ring 23, the spark plugs with the varlous types of screw threadsl may be properly held in position.

From the construction of the parts just described, it will be seen that the lower ,end of the spark plug lis arranged' so that it is directly above the upper 'end of the pipe 19.

Extending into the fitting 18 is a nozzle 26. The nozzle 26 has its discharge end project beyond the opening 12, asI clearly shown in igures 2 and 3 of the drawings.

An elbow 27 is secured to the outer end of the nozzle and hasfixed toit a short tube 28 with the screw threaded portion 29 thereon.

In the ractical operation of my device,

a a spark p ug is placed in the holder orring An auf hose is fastened to the tube 28 and air under pressure is then shot into the pipe19 through the nozzle 26. The inrushing air will' carry with itfsand 3 1, which is in the fitting 18. Th'e air and sand carried with-it will be shot up against the "lowerl end of the spark plug 24 and will cause it to be cleared of anycarbon-or otheii undesired u The air pa'ssing in through the pipe 2O will pass out through 'the fabric ba 16, while the sand :will again be returne towards the opening 12 and into the fitting. 18 foruse l -over again. .l

The arrangement wherein the no zzle 26 projects past the opening 12 insures me that the ttin'g 18 will never become stopped up,

and the inrushing air will draw a sufficient amount of sand with it from the fitting 18 to properly and effectively clean the plug 24. l have shownthe hopper structure 10 as made up of a single unit or casting, however, it may be made of sheet metal if desired.

Some changes maybe made in the construction and arrangement of the various parts of my invention, Without departing from the real spirit and purpose of my invention `and it is m intention to cover by my claim, anyffmodiied forms of structure or use of mechanical equivalents, which may be reasonably includedwithin its scope. y

1 claim as my invention: A sand blast spark plug cleaner including a hopper for containing sand or the like having'a discharge opening therein, a spark plug holder mounted on said hopper for receiving a spark plug, thei top of said hopper sand enters, mounted in said 'iF-fitting, saidf.

nozzle being in communication With a Source of air under pressure, a pipe connec-tingthe T fitting to the hopper at a point directly be 10W the spark plug holder, the parts being so arranged that the nozzle will create a suction in the 'T fitting andv thus draw the sand into the pipe by suction, and force the sand through the pipe into the interior of the spa-rk'- plug, the sand dropping back into the hopper and the airescaping through the cloth sack. l Des Moines, Iowa, March 24, 1922.

CHRIS HANSON. 

